current bounds on the number of colors: 0 -- 195 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:47 2012 Optimize a model with 20565 rows, 19125 columns and 80025 nonzeros Presolve removed 18 rows and 1746 columns Presolve time: 0.13s Presolved: 20547 rows, 17379 columns, 78279 nonzeros Variable types: 0 continuous, 17379 integer (17379 binary) Root relaxation: objective 0.000000e+00, 327 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (327 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 97 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:48 2012 Optimize a model with 10275 rows, 9570 columns and 39600 nonzeros Presolve removed 18 rows and 864 columns Presolve time: 0.09s Presolved: 10257 rows, 8706 columns, 38736 nonzeros Variable types: 0 continuous, 8706 integer (8706 binary) Root relaxation: objective 0.000000e+00, 326 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (326 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 48 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:48 2012 Optimize a model with 5235 rows, 4890 columns and 19800 nonzeros Presolve removed 18 rows and 432 columns Presolve time: 0.03s Presolved: 5217 rows, 4458 columns, 19368 nonzeros Variable types: 0 continuous, 4458 integer (4458 binary) Root relaxation: objective 0.000000e+00, 328 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (328 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:48 2012 Optimize a model with 2715 rows, 2550 columns and 9900 nonzeros Presolve removed 18 rows and 216 columns Presolve time: 0.01s Presolved: 2697 rows, 2334 columns, 9684 nonzeros Variable types: 0 continuous, 2334 integer (2334 binary) Root relaxation: objective 0.000000e+00, 324 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (324 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:48 2012 Optimize a model with 1455 rows, 1380 columns and 4950 nonzeros Presolve removed 18 rows and 108 columns Presolve time: 0.01s Presolved: 1437 rows, 1272 columns, 4842 nonzeros Variable types: 0 continuous, 1272 integer (1272 binary) Root relaxation: objective 0.000000e+00, 309 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (309 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:48 2012 Optimize a model with 825 rows, 795 columns and 2475 nonzeros Presolve removed 18 rows and 54 columns Presolve time: 0.00s Presolved: 807 rows, 741 columns, 2421 nonzeros Variable types: 0 continuous, 741 integer (741 binary) Root relaxation: objective 0.000000e+00, 313 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (431 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:48 2012 Optimize a model with 405 rows, 405 columns and 825 nonzeros Presolve removed 405 rows and 405 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - current bounds on the number of colors: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:48 2012 Optimize a model with 615 rows, 600 columns and 1650 nonzeros Presolve removed 199 rows and 219 columns Presolve time: 0.00s Presolved: 416 rows, 381 columns, 1248 nonzeros Variable types: 0 continuous, 381 integer (381 binary) Root relaxation: objective 0.000000e+00, 199 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 170 - 0.00000 - - 0s Explored 0 nodes (631 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - optimal solution found: number of colors: 3